code: def setUp(self):
      a = cupy.random.permutation(self.num)
      self.a = a.get()
      self.num_half = int(self.num / 2)
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy.testing import _condition
label_desc: Use image node_id 1 for calling the TestPermutationRandomness obj's underlying member method code with example usage: obj.setUp() without return types